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2.04.7 Hydrology Description <br />(4) A description of the maps prepared according to the standards of rule 2.10 <br />follows: <br />(4)(a) The locations of water supply intakes, ditches, reservoirs, and wells within a <br />one mile minimum radius of the affected area are shown on Map 23, Water <br />Rights Location. <br />Current users of surface water flowing into, out of, and within the hydrologic <br />area are the landowners who irrigate land below the Deer Trail Ditch, the Fire <br />Mountain Canal and Terror Ditch which provides water to Garvin Mesa. <br />Surface water flowing down the ephemeral drainages is not used directly by <br />local landowners. A -Gulch and C -Gulch flow into the Fire Mountain Canal. <br />B -Gulch flows into the Deer Trail Ditch. D -Gulch flows over the Deer Trail <br />Ditch, under the Fire Mountain Canal and into the North Fork of the <br />Gunnison River. Freeman, Sheep Corral, Dove and Ironpoint Gulches flow <br />into Hubbard Creek. There are four unnamed, generally west to east <br />flowing, ephemeral gulches, and two unnamed generally east to west flowing <br />ephemeral drainages which are tributary to Terror Creek within the permit <br />and adjacent area. West Terror Creek is an important component of the <br />Terror Creek drainage. There are two west to east flowing and two east to <br />west flowing ephemeral drainages which are tributary to Stevens Gulch. <br />These ditches are expected to be typically dry with flow occurring during <br />spring snowmelt and after significant precipitation events. Refer to Map 9, <br />Hydrologic Monitoring Location Map for the location of the ephemeral <br />drainages. <br />Except for Iron Point Gulch, the contribution of the ephemeral drainages to <br />the local irrigation budget is believed to be negligible. The ephemeral <br />drainages only flow during spring snowmelt and significant precipitation <br />events. Run -off during spring snowmelt does not help the irrigation budget. <br />Run -off resulting from significant precipitation events is likely to produce <br />sediment laden water that could damage the irrigation structures. <br />Sediment ponds B and C which are located in B -Gulch and C -Gulch <br />respectively will help reduce the sediment load in the precipitation induced <br />run -off from the ephemeral drainages. <br />PR -14 2.04-65- 03/14 <br />